Signal Generation with MATLAB. Example of DTMF in telephony
by Maurizio @ dev.emcelettronica.com: In mathematics a signal is a real function of a real variable f(t). In electronics it represents the evolution of a voltage (or a current) over the time and depends on the performances of the stage of the amplifier. Through a memory buffer,...
Continue ReadingAdding Sensors to Monitor Hive Health
by Nathan Seidle @ makezine.com: The Digital Beehive uses Wi-Fi to broadcast a beehive’s weight, humidity, temperature, and battery voltage every minute to SparkFun’s data channel service called Phant. The raw data can be seen here but you can view some prettier graphs of the...
Continue ReadingNot a battery, not a cap: Murata’s small energy [storage] device
by Graham Prophet @ edn-europe.com: To meet what the company sees as a gap in the available range of energy storage solutions, Murata has developed the UMAC, a small, high-capacity cylinder-type energy device for use in wearable and wireless sensor applications. Although lithium-ion...
Continue ReadingLogic PCB Business Card
Floyd-Jones designed his own business card using logic circuitry. He writes: The card implements a digital finite-state machine which displays the next character of my last name on a 7-segment display each time the button is pressed. Luckily all 11 characters in my name can be...
Continue ReadingArduino WiFi Shield 101 is on sale
by Zoe Romano @ blog.arduino.cc: We are excited to announce that Arduino Wifi Shield 101 developed with Atmel is now available for purchase on the Arduino Store US (49.90$). Arduino WiFi Shield 101 is a powerful IoT shield with crypto-authentication that connects your Arduino or...
Continue ReadingJIGMOD Electronic Circuit Building System
Succeed with your Innovations by building reliable, high quality electronic circuits. by JIGMOD: Most electronic components aren't compatible with breadboards. JIGMOD bridges the gap between those components and your breadboard. Don't work hard - work smart! Avoid wasted time spent...
Continue ReadingHumidity sensor using 8051
by circuitstoday.com: This project is about a simple humidity sensor based on 8051 microcontroller. Humidity sensor is also called hygrometer. This circuit can sense relative humidity (RH) from 20% to 95% at an accuracy of 5%. The humidity information is displayed on a 16×2 LCD...
Continue Reading3D Print the Ultimate Helping Hands for a PCB Workstation
by Giuseppe Finizia @ makezine.com: I am the Senior Analyst of the Electronic Forensics Unit of the Carabinieri (Italian Military Police) and I deal with technical investigations on seized electronic devices. I spend most of my day in a well-equipped electronic laboratory, but I was...
Continue Reading